Re: [PATCH] Revert "cpufreq: schedutil: Don't restrict kthread to related_cpus unnecessarily"

From: Viresh Kumar
Date: Tue May 08 2018 - 07:15:01 EST


On 08-05-18, 12:00, Quentin Perret wrote:
> Right, I see your point. Now, with the current implementation, why should
> we randomly force a CPU to manage the kthread of another ? IIUC deadline
> should assign the kthreads to CPUs depending on the state of the system
> when the task is created. So, from one boot to another, you could
> theoretically end up with varying configurations, and varying power/perf
> numbers.

Yeah, if it is fixed at boot then there is no good reason to push it
to any other CPU. I agree.

--
viresh